Hello you might want to consider using Zyklene. Its a non prescription drug we got our first packet from our vets but discovered it much cheaper on-line we used Vet-medic. It comes in capsules 1 tablet per day for cats up to 5 kg you open the capsule and sprinkle it on their food. My little persian found it very palatable and we have noticed that she is a lot calmer. Can be used long-term or just for a few days when a stress ful time will occur. Hope this helps.